Commutator



G. E. COOK.

COMMUTATOR. APPLICATION FILED JUNE 3,1920- RENEWED FEB. 25,192 2- Patented Aug. 22, 1922.

WITNESSES A TTORNEYS Application .xfi wewea'a F a'in'uary 25, "922. Serial 1%. 53%),289.

T all vi /Emu it may mime 2'71 Be it; kmwn tim i GEORGE Semi, citizen 0f file Unitssd States. and a 0f flu: citv. of New York, bowing, 13/11, in he a'mmty 01 Kings 7 New fibrk iliveii'teci 21. proved Commutatoiy of i ing is 5111i, and :2 this beingim part a div cation Serial No. 338,023, Nuvember 1%, 1919.

The object of the iDVEHiCiDE'LiS t0 pmvida a and imprmweci commnitmimf oi ilim'l" by 1112 on mare espaciziiiy designed for use in ignition systams of intei nai mmbustioii engines .01 the mul'ipie cylinder type and miangmi "w reduce the chance of 530 a mini mxmm I I Armin er abject is Us prevent burning 011% 0f the circuit Wires fine casing of ili1-3 c0mmutator. 1

Anohsr ubjeci is to prevm'is cii'suitam? to szauiude (ius' a' ziwr embrm D of commutator.

"Vi 1th #1856 and other obgects m mew,

'inven'sinn cbnslsizs of cerf adin naval M cnnstruciion imreingn er shown anii (1&- scriieed and thsp'specificaiiy pointed mm the claims A practiciii embodimenc 0 2" iiw invention re preseii seti ix" $11G acmmpan yin 51mm forming a 32m 0f fins specification in Nhidl simiim' cl macuers of reference iniicam cm'respnnding inaii the Views.

Figure 1 is 2113 sim w'iion ViGW' 0f :Jhe comnmzzitmf with the engine cairn shaft shown in SECiZiUH;

Figure 2 is a 0mm section 31? the an the lime F2--2 if iii igm e land in pasitim"! on crank case rfif the engine;'

Figure 3 is a ses'tinnai plan View (:35 a por- :tion of the same an the lime 3 3 0f Figure and 1 F' zgura is; an eie-vati'on view {if the com mutator with the cap rammred.

in my previous application above referred.

to, the circuit wires are embadded in Hue casing anti directly cmmeciad with Tim am? and W211i conwctsm This arrangement the disadvantage that in circuit Wire burns (mt it eannoi; be repizmed by mmther Wiahaut breaking up the casing my present; inv'entien the cizc'uit W'iiiGS mnbeucisd in the casingz-md are easiiy removed in aase one is burned out, and the CW9- filed Kane 3, 1920, fieriai 1T0. 386,345.23,

in an an 26 m revoiubig mami'jezf are moi;

ing is made imiim'v $0 pirovide a hamber into which cxiehd tin circuit Wires, the 215813 of iz being (renn -(s imi' wiish iifipfiaifiie (ms emneided in the casing and cmfmec' zu i 0 rin and mid waif. ccni'zmiis cimmbe'r for connection is had 0 nma'ni j cap. :3 coii'imutaiw Casi 10 pmfembi mafia of fibar 01' nther msuiai insg maie fmi and is provided with me? u ring 1i mmmied 70 turn on a heaving l2 i m'ming part the crank case 13 ()f the 'izii'mzil COHIbUSiZiGH engine 011' which the commumior 0i timer is The 11 is pmvicied with 111g 14: connected by a link ii-With a suitable shifting lever or other means for turning the casing 10 with a, iew to advance or retard; vbhe spark in the usual mamzm.

rim of the casing 10 is smbaridir ii a; 0f segman gal rim contacts 21 and series 0 5 segmencai end 'Wfiii contacts i emiz fidded i the back wall 23 of the casing:

10. rfiatrenm to Figure 1 it will moiigced that contacts 21anii are m2- mni ed' in pfi m with the cansacixa; in paifl' arming A in m -whipping'tehiian. rimwmqtacts 21 successivdy engageoi by 213 sii'ntact membar 25 prefemzbly in the ii 0'3? a piecs- 01f 9n mounted in siicia 111% i :fienu g i .1 casing 10 and secm'aii 0m iqhe cam shaifi m tiw internal cambustizm engine, The wmm maker 25 pressed out? wardiy by a spring 259 mmngizciin the arm 5%", as plainiy shown in FiguraZ, is iilsm 'a firm cmtacfi; (if cnntaci: maxim? 25 with $116 rim sa-tacks 21. A. 51500116 contact 30, likewise in the forum: {if piaca of carbnm mounted to slide in a longitudinal baari r-ig; 31 fanning part 9f the revoiuohi mmim? 52?, 2mg} ilis coniact maker 39 is sseii GuiJ- H gamed in the bemrmg- 31, pla nly shown in Flgure 3. W112 ha War c1 by a; spriirig noticed mm, by Hm arrangemaniz iiassrin the revuhibia membe? 27 causes;

ie rs $35 and 39 t0 successwely mnv-z the writ/am,

want with ibhe cnrr espontimg m wan-J bend into the chamber il. it will he noticed that the leads 40 and 4&3 are embci'lded in the material of the casing ill in spaced relation with each othen and such leads are not iiable to be burned out or other jurecl when the commutator in use. ends of the leads 40 within the, chamber 4 are connected with circuit wires 44 an similar circuit wires it? connect with the inner ends of the leads 4-2, and the said circuit wires 45 and 46 extend from the charui'ier H through an outlet l7 lornual integrally in a handle extension 48 integral with the bod The circuit wires 45 and .9 are insulated in the usual manner and extend through :1 flexible tubing 50 attached to the outer cnd ot the handle extension M1. in insulated ground wire extends through the l'lcxiblc tube 50 and through a side opening; so formed in the handle extension 45% lo conncct with the cam shaft 28 in a suitable manner. It is understood that the circuit wires 45 and it; are connected wit-h the internal combus tion engine in a manner more "fully set lorlli in the application above rcl vrrcd to so that further description of the same is not deemed necessary.

The chamber 41 normally' closed by a suitable cap 60, prcie bly oi the sainc 1H2lterial as the casing i is made and this can is provided with a screw (3!. threaded inio u nut 62 embedded ccutrallr in the wall of the annular chamber il. l v the arrange-- ment described the cap no can he readily rcmoved Whenever it is dcsircd to gain access to the annular chamber il and thc parts therein tor repairs or other purposes. A spring bears against the can ($0 t h ld the ring 11, of the (using 11) in cngagcincnt with its bearing 12 it Will be noticed that by having two sets of contacts and Contact makers in the casing 10 the chances for inis n1 ignition in any one of the cylinders oi the engine are rc duced to a minimum especially when both sets oi contacts 21 and 29 are uscd simultaneously. It wili further be noticed that in case. the circuit between the sol oi rim contacts 21 becomes defective for any cause Whatever then the other set, of end wall contacm may be used or vice rersa, or, as above stated. both sets can be used simultaneously. it will further be noticed that by using embedded leads i l and i2 and providing the annular chamber 41 tor the reception of the nircuit wires 45 and -16 proper connection nan be inadn between the circuit. wires and the leads and the parts can be inspcctei'l at any time by the user rcnioving the can 6d i'iarii'ig' thus describei'l my invenlioin l claim as new and desire to secure b Lei- Patent:

1. A eonn'nutator for the ignition system oi a inulti-cylindcr intcrnal combustion on nine. counyrisingr a casing of insulated nuiicrial and having: a rim and an end wall adjaccnt the rinu a set of rini i'ontacts enibeddcd in the said casing rim, a e oi' end wall contacts embedded in the i end wall. leads embedded in spaced rel in the said casing: and connected at their inncr ends with the said contacts. conduotors onnected with the outer ends oi the said leads. and a iei'oluble ,n'icniber u'iountcd to turn and provided with two contact IZlPll1- hers. oi which one is adapted to engage the said rim contacts and the other the said end wal contacts.

2-. A commutator for the ignition system of a ruulti-cyiindcr internal combustion ennine. comprising: a casing in'orided with a him, a chamber having an integral outlet and a can for closing: the chambci: a set oi? rim contacts mounted in the rim oi' the cas ing. a set of end wall contacts mounted in the end wall of the casing and arranged in overlapping: relation with the said rini con lllllS. lcads embedded in thc said using and conncclcd with thc said rim and end Wall contacts. ihc said leads extending into the said chamber, a revoluble member mounted to turn in the said casing and provided with two contact members. of which one engages successively the said rim contacts and the other engages successircly the said end wall contacts. and conductors catentlin;- through the said casing outlet. and into the said (using c'nambei'i the inner ends oi the conductors being attached to the cnds of the said leads w thin the said chamber.

G EORGE E. COOK.

the 

